34results about How to "Guarantee the quality of recycling" patented technology

The invention discloses a powder recovery workbench used for metal 3D printing molding. The powder recovery workbench comprises a workbench panel, a powder recovery mechanism, a powder drying mechanism, a powder screening mechanism and a powder recovery bin. Locating holes are evenly formed in the workbench panel. The powder recovery mechanism comprises a powder collection funnel and a negative-pressure powder absorption mechanism. The powder drying mechanism comprises a powder drying bin and a heater. The powder screening mechanism comprises a screening frame, a screening net, a base and a power mechanism used for driving the screening frame to act. An impurity discharge opening and a powder recovery opening are formed in the screening frame, and the powder recovery opening communicates with the powder recovery bin through a powder recovery pipe. A matrix used for laser cladding molding or 3D printing molding can be directly mounted on the powder recovery workbench, powder which is not molten by lasers can be directly recycled through the powder recovery workbench, transfer is not needed, little manual participation is needed, and the labor intensity is small; and the powder recovery efficiency is high, and the powder recovery and utilization rate is increased.

The invention provides a swirling flow type waste plastic crushing sorting cleaning system. The swirling flow type waste plastic crushing sorting cleaning system includes a first transfer machine, a crushing machine, a transfer box, a cleaning device, a swirler, a box body and a fixing frame, and the top of the fixing frame is fixed to the bottom of the crushing machine. According to the swirlingflow type waste plastic crushing sorting cleaning system, metal magnetic impurities in waste plastic are reduced, the quality of waste plastic recycling is improved, meanwhile, the waste metal magnetic impurities are collected, post-processing and production of processing are convenient, multi-angle cleaning is realized, cleaning is more even, the efficiency and quality of cleaning are ensured, thus the recycling efficiency of the waste plastic is improved, reuse of water resources is improved, the cleanliness degree of the cleaning process is increased, thus the recycling quality of the wasteplastic is ensured, the water content of waste plastic recycling is decreased, and the quality of production is ensured, so that secondary processing is avoided.

The present invention provides a chlorosilane-containing waste gas recovery treatment apparatus, which comprises a chlorosilane recovery unit, a chlorosilane leaching unit and a tail gas emptying unit, wherein the chlorosilane recovery unit is connected with the chlorosilane leaching unit and is used for recovering partial chlorosilane gas in chlorosilane-containing waste gas and conveying the remaining waste gas to the chlorosilane leaching unit, the chlorosilane leaching unit is connected with the tail gas emptying unit and is used for leaching out the remaining chlorosilane gas and hydrogen chloride gas in the remaining waste gas so as to clear the chlorosilane gas and the hydrogen chloride gas in the remaining waste gas, and conveying the chlorosilane gas and hydrogen chloride gas-clearing remaining waste gas to the tail gas emptying unit, and the tail gas emptying unit is used for emptying the chlorosilane gas and hydrogen chloride gas-clearing remaining waste gas. With the recovery treatment apparatus of the present invention, the chlorosilane resource in the recovered waste gas can be completely recovered, and the pollution-free treatment can be performed on the chlorosilane incapable of being recovered in the waste gas.

The invention discloses a chip recovery device for machine tool machining. The chip recovery device comprises a back plate and a platform, wherein a material pushing mechanism is arranged above the platform; a chip collecting groove is formed in one end of the platform, a filter screen is installed in the chip collecting groove, a conveying belt is arranged above the chip collecting groove, an electromagnet is laid on the conveying belt, a partition plate is arranged between the conveying belt and the material pushing mechanism, and a dehumidifier is installed on the partition plate; and a scraping plate is arranged at the upper end of the conveying belt, an air blower is arranged above the scraping plate, a shell is arranged at the end, far away from the partition plate, of the scraping plate, a spiral blade is rotationally installed in the shell, and a plurality of drying plates are vertically arranged on the inner wall of the shell. According to the chip recovery device for machinetool machining, chips are pushed into the chip collecting groove through the material pushing mechanism, then iron chips are adsorbed through the electromagnet on the conveying belt, and dehumidification treatment is carried out on the iron chips through the dehumidifier; and the chips on the conveying belt are scraped off through the scraping plate at the upper end, the chips are blown into the shell through the air blower, water on the surfaces of the chips is removed again through the drying plates, so that the chips are prevented from being rusted, and the recovery quality is guaranteed.

The invention belongs to the field of papermaking and relates to a method and a system for realizing zero emission of papermaking pulp residue and sludge. Waste water generated in papermaking is processed by steps of filtering, physical sedimentation, biochemical treatment and sedimentation, in other words, pulp residue and sludge in waste water are recovered at multiple levels and stages and then are supplied to a slurry system for production, so that pulp residue and sludge in the waste water are recovered completely and zero emission thereof is achieved. In the system, by the aid of filtering and purifying facilities such as a grid machine and an inclined screen for filter, an efficient purifying tower for settling, an anaerobic tank and an aerobic tank for performing biochemical treatment and a secondary sedimentation tank and tertiary sedimentation tank for performing re-sedimentation, the pulp residue and sludge of the waste water are separated completely and then delivered to papermaking workshops to be recovered, and thus, zero emission of the pulp residue and sludge in papermaking is realized.

The invention relates to an automatic recovery system of scutching machines for hemp fibers. The automatic recovery system comprises at least one scutching machine and a baler. Discharge ends of the scutching machines are provided with collection hoppers. The automatic recovery system further comprises a recovery device including first cotton-conveying pipelines, a first cotton-conveying fan, a cyclone separator and a second cotton-conveying pipeline. One end of the first cotton-conveying pipelines are communicated with discharge ports at lower ends of the connection hoppers and the other ends of the first cotton-conveying pipelines are communicated with an air inlet of the first cotton-conveying pipeline. An air outlet of the first cotton-conveying fan is connected with one end of the second cotton-carding pipeline. The other end of the second cotton- conveying pipeline is connected with a feeding port of the cyclone separator. A discharge port of the cyclone separator is connected with a feeding port of the baler. An air exhaust of the cyclone separator is used for outwardly exhausting separated air. The automatic recovery system of the scutching machines for hemp fibers has following beneficial effects: by means of the recovery device, hemp fibers subjected to opening treatment are conveyed to the cyclone separator and the cyclone separator is used for conveying opened hemp fibers to the baler for baling operation and recovery; intensity of manual labor and production cost are decreased; generation efficiency is raised; hemp fibers are prevented from flying away so that air pollution is avoided; and no damage is caused to human bodies.

The invention relates to a process for recovering glucosamine in activated carbon, which comprises the following steps of: 1) adding the activated carbon and water into a reaction kettle according to a ratio of parts by weight being 1: (2.5-3.5), agitating and heating to 75-85 DEG C to enable the glucosamine in the activated carbon to be dissolved in the water; 2) conducting solid-liquid separation to the materials subject to the treatment through a filter press to separate solid activated carbon from aqueous solution containing the glucosamine; and 3) conducting negative-pressure distillation to the aqueous solution containing the glucosamine in the reaction kettle to obtain the glucosamine. By using the characteristic that the glucosamine can be easily dissolved in the water and by mixing the activated carbon containing absorbed glucosamine with the water, the glucosamine can be removed. Therefore, not only can the glucosamine be recovered, but also the activated carbon can be recycled and the economic benefit is greatly improved.

The invention discloses a classified treatment type waste engine oil recovery device. The device comprises a heavily-polluted waste engine oil storage chamber, a light-polluted waste engine oil storage chamber, an acidification chamber, a concentrated sulfuric acid delivery pipe, stirring rods, conveying belts, filter plates, brush heads, hydraulic cylinders, residue discharge ports, waste residuerecovery boxes, an alkalization chamber, a lime solution delivery pipe, an activated clay purification chamber and a dehydration chamber, wherein the heavily-polluted waste engine oil storage chamberis connected with the top end of the acidification chamber; the upper right end of the acidification chamber is connected with the concentrated sulfuric acid delivery pipe. Compared with the prior art, the classified treatment type waste engine oil recovery device has the beneficial effects as follows: waste engine oil can be divided into heavily-polluted waste engine oil and light-polluted wasteengine oil and is recovered in a classified manner, so that not only is the recovery quality of the waste engine oil guaranteed, but also the recovery cost of the waste engine oil is reduced, besides, the device is further equipped with a waste residue cleaning device, waste residues produced during recovering of the waste engine oil can be cleaned automatically, and the device is quite convenient.

A photocatalytic material recovery device includes a case, a median position of that bottom of the inner cavity of the case is fixedly connected with an adjusting device, a raw material pump is fixedly connected to that right side of the top of the adjusting device, a ball valve is fixedly connected to one side of the adjusting device away from the case, a driven gear is fixedly connected to the middle position of the outer surface of the reaction kettle, a drive gear is fixedly connected to the right side of the outer surface of the driven gear, a drive motor is fixedly connected to the inner surface of the driving gear through a coupling, a three-way pressure valve is fixedly connected to the top of the outer surface of the reaction kettle, and pressure pumps are fixedly connected to the top of the inner cavity of the case at symmetrical positions on both sides of an induction switch. The invention relates to the technical field of photocatalytic materials. By applying pressure, the reaction can be carried out quickly and effectively, and the catalytic material is discharged by the pressure, so that the discharge is clean and thorough, thereby ensuring that the reaction is not affected and the recovery efficiency and quality are ensured.

The invention relates to a mechanical device, in particular to a spiral-flow type underground liquid-gas separation device. The device comprises an oil mixing middle flange, a pup joint, an oil mixingouter pipe and a cyclone separator, the oil mixing middle flange is connected with a big king eight cover and a big four-way joint of a Christmas tree, the pup joint is fixedly connected with the oilmixing middle flange, the oil mixing outer pipe is connected with the pup joint, the oil mixing outer pipe is arranged between an oil pipe and a casing pipe, and the cyclone separator is arranged onthe oil mixing outer pipe and is used for separating out residual oil in the associated natural gas. The spiral-flow type underground liquid-gas separation device provided by the invention can form three layers of overflowing channels after being matched and mounted with a Christmas tree, and an exhaust port is separated from a pour point depressant injection port and a thickening agent injectionport, so that the pour point depressing and thickening effects are guaranteed.

The invention provides a printing dye raw material recycling device which comprises a dye recycling box, a dye containing cavity is formed in the dye recycling box, a cover plate is arranged at the upper end of the dye containing cavity, a motor is arranged on the upper surface of the cover plate and fixed to the cover plate, and the output end of the motor is connected with a stirring rod. The end, away from the motor, of the stirring rod penetrates through the cover plate and extends to the bottom in the dye containing cavity, a plurality of stirring blades are arranged on the stirring rod, a fixing base is connected to one side of the dye recycling box, a plurality of heating pipes are arranged on the fixing base, and a control valve is arranged at the bottom of the dye recycling box. The device is simple in structure, and can guarantee that dye cannot be solidified due to low temperature, and the recycling efficiency of the dye is improved.

The invention relates to the related field of waste battery treatment, and discloses a dry battery disassembling and recycling device. The device comprises a main box, a disassembling cavity with a downward opening is formed in the main box, an electrolyte recycling cavity is formed in the left side of the disassembling cavity, a diameter limiting hole is formed between the electrolyte recycling cavity and the disassembling cavity in a communicating mode, and a storage box cavity is formed in the right side of the disassembling cavity in a communicating mode. According to the device, waste drybatteries are subjected to fine treatment and recovery, positive and negative electrode metal sheets of the dry batteries are cut and recovered firstly, then electrolyte in the dry batteries is pushed out of dry battery shells and collected, finally, the device can eject the final dry battery shells out of the device, the whole process is continuous and repeated, large-batch dry batteries can becontinuously machined, the recycling rate of the dry batteries is high under fine disassembly of the device, the recycling quality is guaranteed, and all collected parts can be machined again in the follow-up process.